Ammonium-perchlorate explosive



if Tan sTaTas PATENT 0mm.

OSCAR BIBGER CABLSON, OF MANSBO, AVESTA, SWEDEN, AS SIGNOR T0 AKTIEBOLAGET CARLIT, OF STOCKHOLM, SWEDEN, A CORPORATION OF SWEDEN.

AMMONIUM-PEROHLORATE EXPLOSI VE.

No Drawing.

T 0 all whom it may concern:

Be it known that I, OSCAR BIRGER CARL- of the main constituents of several kinds of modern explosives. Though ammonium perchlorate ltself 1s not explosive, it forms as an oxygen delivering material in connection with combustible additions a powerful explosive.

Such an explosive containing pure ammonium perchlorate is, however, objectionable as it requires, for its explosion a strong impulse from relatively powerful percussion caps or igniters.

At the manufacturing of ammonium perchlorate the impurity of chlorates considered as noxious and originating from the long experiments it has, however, been found that this is not the fact if the percentage of chloratebe only maintained within certain limits. I

The'present invention refers to an ammonium perchlorate explosive which is made Specification of Letters Patent.

Tatented Jan. 13, 1920.

. Application filed September 25, 1917. Serial No. 193,092.

more sensible to shocks by an addition to the ammonium perchlorate or a percentage left in it, of a certain, small quantity of chlorate for instance potassium, sodium, barium or calcium. The presence of a small quantity of chlorate also increases the velocity of explosion considerably. The quantity of chlorate is proportioned according tothe sensibility which is desired to be imparted to the explosive. Said percentage or addition may, however, not be too great, for the reason that if the percentage of moisture in the explosive should increase, a decomposition of ammonium perchlorate and for instance potassium chlorate might take place and ammonium chlorate arise therefrom. The last mentioned material will, however, easily decompose, and is thus dangerous to store or handle. Because of this the chlorate should exist only in small quantities and only amount to between 0.005 and 1% by weight of the quantity of the ammonium perchlorate.

Having now .described my invention, what I claim as new and desire to secure by Letters Patent is: V p

1. Ammonium perchlorate explosive, char acterized by the ammonium perchlorate used having a percentage of a chlorate, between 0.005 and 1% byweight.

2. Ammonium perchlorate explosive, characterized thereby that the ammonium perchlorate used has a percentage of chlorate of potassium, between 0.005 and 1% by weight.

In witness whereof I have hereunto signed my name.

' OSCAR BIRGER CARLSON. 

